User's Manual

Battery Charging
The unit provides a built-in 3.7V 1000mAh Lithium battery. The standard
voltage is 3.7V. The maximum voltage is 4.2V.
1. The minimum working voltage of the unit is 3.5V.When the battery voltage
is under 3.5V, the red indicator will stay lit to indicate the low voltage status
and the battery needs to be recharged.
2. Connect one end of the USB charging cable (included) to the DC in jack on
the rear of the unit. Connect the other end to your PC. Or you can connect
the other end to a 5V AC/DC adapter (not included) to power and charge the
unit. Then the green indicator will stay lit to indicate that the battery is in
charging status.
3. When the voltage reaches the Maximum voltage 4.2V, the green indicator
will turn off to indicate that the charging process is completed.
4